Forrester Research Senior Analyst Andrew Cornwall said Bun appears to be focused on boot speed, making it well suited for edge use cases. But that means you’re competing with the WebAssembly runtime, which can start faster.
But Bun is already showing interesting performance that developers see as an alternative to runtimes like Node.js and Deno, said Holger Mueller, vice president and analyst at Constellation Research.
But while Zig can be compiled to Windows and Arm, it’s a lesser-known language, limiting Bun’s potential developer pool, Cornwall said.
Andrew CornwallForrester Research Senior Analyst
Bun may have adoptability issues
Deno and Node.js can run on multiple platforms, but Bun is associated with high-performance Unix variants: macOS (x86 and Arm), Linux, or Microsoft Windows Subsystem for Linux (WSL), so its Its use is limited, Cornwall said. Windows developer he should use WSL. WSL is primarily intended for Linux developers working in a Windows environment, and has limitations such as being available only on Windows 10.
Despite these shortcomings, Bun is noteworthy. It’s notable, he said, especially when he gets sponsorship from a major edge provider who wants to replace V8 for short-term tasks.
“It’s not likely that Bun will cause a major migration away from Node.js yet, but it could find a place in the toolbox,” Cornwall said.
Developers can install Bun by running the installation script and downloading Bun from GitHub.